Isolation and Characterization of Nanocellulose Obtained from Industrial Crop Waste Resources by Using Mild Acid Hydrolysis

 

Guardado en:
Detalles Bibliográficos
Autores: Moreno, Galia, RAMÍREZ-AMADOR, KARLA, ESQUIVEL ALFARO, MARIANELLY, Jiménez Villalta, Guillermo
Formato: artículo
Fecha de Publicación:2018
Descripción:Cellulose, microcrystalline cellulose and nanocellulose were prepared from three agricultural waste resources: pineapple leaf (PALF), banana rachis (BR), and sugarcane bagasse (SCB). Each waste resource was first converted into microcrystalline cellulose which was subsequently converted into cellulose nanoparticles by using mild (30% w/v) and strong (60% w/v) sulfuric acid concentrations for extraction. Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and thermogravimetric analysis (TGA) were used to characterize each waste resource and extracted cellulosic materials. Furthermore, nanocelluloses were studied by zeta potential, size analysis, and transmission electron microscopy (TEM). Cellulose nanowhiskers were successfully obtained and isolated with a 33% average yield by applying a mild acid treatment. Substrates BR and SCB proved to be more promising agricultural waste resources in terms of their crystalline cellulosic content and properties.
País:Repositorio UNA
Institución:Universidad Nacional de Costa Rica
Repositorio:Repositorio UNA
Lenguaje:Inglés
OAI Identifier:oai:null:11056/23936
Acceso en línea:http://hdl.handle.net/11056/23936
Palabra clave:CELLULOSE
CELULOSA
PIÑA
PINEAPPLE
RESIDUOS ORGÁNICOS
ESPECTROSCOPÍA
ESPECTRO INFRARROJO
BANANO
CAÑA DE AZÚCAR
SUGAR CANE